Computing apparatus



Jan. 26, 1937. c. s. HAZARD COMPUTING APPARATUS Filed May 24, 1935 5Sheets-Sheet l Jan. 26, 1937.

( s. HAZARD K 2,069,184

COMPUTING APPARATUS Filed May 24, 1935 5 Sheets-Sheet 2 Jan. 26, 1937.c. s. HAZARD 2,069,184

COMPUTING APPARATUS Filed May 24, 1935 5 Sheets-Sheet 5 J=f- AMOUNT 49OF PURCHASE 1/ a T3 DOLLARS CE N v JNCLUD NG TAX IEIIIIEIEIEIEI INVENTORJan. 26, 1937.

c. s. HAZARD COMPUTING APPARATUS Filed May 24, 1935 5 Sheets-Sheet 4INVENTOR Jan. 26, 1937. c. s. HAZARD 2,059,184

COMPUTING APPARATUS Filed May 24, 1955 s Sheets-Sheet 5 INVENTORPatented Jan. 26, 1937 UNITED STATES PATENT OFFICE 2,069,184- COMPUTINGAPPARATUS Application May 24, 1935, Serial No. 23,148

A 3 Claims. (01. 74-393) The apparatus in which the present invention isexemplified has been designed with particular reference to thedispensing of gasoline in which there is exhibited to the customer notonly the number of gallons delivered, but the price per gallon and thecost to the customer of the quarttity delivered. The invention isparticularly concerned with the mechanism whereby the resultant ofdifferent price elements, such as cents and fractions of cents, forexample, are combined in the computation of the price of a sale. Theconstruction is such as to permit ready adjustment of the apparatus inaccordance with variations in unit prices and provision is made wherebytotals are registered as usual for the benefit or the seller Theinvention will be fully described hereinafter with reference to theaccompanying drawings in which an exempliilcation of the invention isiiiustrated, and in which:

' Figure l is a view infront elevation of an an paratus in which theinvention is incorporated, a meter of known type being also shown.

Figure 2 is a view of the same, partiy in vertical section and partly inelevation,.with the dial plate removed.

Figure 3 is a view in sectional. elevation on the plane indicated by thebroken line 3-3 of Figare i. s

Figure 4 is a fragmentary view or the apps ratus as seen from theopposite side, showing a sale indicator and a totalizer for theconvenience of the seller.

Figure 5 is a view in horizontal section on the Figure c is an enlargeddetail view in section on the line 3-4 of Figure 5, and

Figure 'l is a development of the gears shown in Figure t. I

In the embodiment of the invention illustrated a meter, of the typeoften used in connection with gasoline dispensing apparatus, is shown atM. The gasoline indicating device and the sale price indicating deviceare actuated from the meter through independent trains of gearing. Asshown in Figures 1 and 2, a gear I on the meter spindle meshes on oneside with a gear 2, which, through a shaft. 2*, gears 3, 4, worm 8 onshaft 4", and worm gear 6, frictionally mounted on shaft I, actuates theunit indicating hands 8, which sweep over the dials at the front and therear sides of the apparatus. The secondary indieating hands 3, mountedloosely on the shaft 1, 55 aredriven therefrom through gears II, II, and

plane indicated by the broken line 5-3 of Figa socket at its end by achange gear 34 on the l2 as usual and as shown in Figures 1, 2, and 3.The gallonage totalizer, which is sufficiently indicatedat l3 in Figure3, is driven through a worm it on the shaft 4, a worm gear l5, and aworm it on the shaft l5, and a worm gear I! 5 on the shaft of thetotalizer. a

The gear I also meshes with a gear i8, which, through its shaft l8,gears I9, 20, shaft 2|!- and gears 2i and 22, drives shaft 23. In theembodiment of the invention shown, one of the change gears it, 25, bothof which are carried by a removable price tag 26 (which in this caseshows cents), engages a socket on the shaft 23. The other change gear 25similarly engages a socket on ashaft 21. It will be understood that eachprice tag 26 carries a different pair of gears to correspond to theintegral portion of each price per gallon within the working range. Theshaft 2"! carries a gear 28, shown in Figure 3 and in detail in Figure10, formed with internally out teeth which engage the teeth of a gear 29one. shaft 29, which carries a gear 30 (see Figures 3 and 5). The lattermeshes with a gear 32 which, through a shaft 32, drives a continuoustotalizer for dollars and cents which may be of usual construction andis sufficiently represented at 33 in Figures 3 and 5. The ratio of thegears 24 and 25 determines the ratio between the revolution of the meterand the revolution of the cash totalizer 33. It will be understood thatthe term change gear is employed for convenience and is not to beregarded as. excluding any other arrangement which functions in likemanner.

Other price tags 3!, each bearing an indication of a fractional part ofa cent, are provided for the purpose of effecting proper actuation ofthe totalizer. For this purpose a gear 35 (see Figure 2) on the shaft23, through suitable reduction gearing 36, 36, drives shaft 31 engagedthrough 40 price tag 34. The other change gear 34* meshes with anddrives shaft 38 on which is mounted an eccentric 33. The eccentricengages and oscillates a lever 40 in such 'manner as to cause the pinion29, carried by the lever, to move in a circle, the lever 40 beingengaged at its center by a short link 4! pivoted at a fixed point, sothat the free end of the lever and the pinion carried thereby shall havean approximately circular motion. The teeth of the pinion 23 beingalways in engageso ment with the teeth of the internal gear 28 eachoscillation of the lever 40 causes the gears 29 and 30, both carried bythe shaft 29, to gain or lose a certain number of teeth with respect tothe rotation of draft 2] from which the internal gear change gears 3tand 34 the relative direction of I rotation of the shafts 23 and tidetermining, as above pointed out, whether the sheet is an increment ora decrement.

For the operation of the sale amount indicat ing device a gear 39 whichis engaged and driven by the gear 30, is fixed to a shaft 32, shown inFigures 3, and 7, upon which is mounted frictionally a gear (iii. Thelatter, as shown in Figure 6, engages and drives a gear iii which isfixed on the shaft 58 to which is also fixed a gear fiii,

which, through gears 41 and 18, drives the rear units numeral wheel 49.Gear d5 has secured to it the teeth 35 of 9. Geneva movement, which, in

' the rotation of the gear d5, engage and actuate a mutilated pinion 55The latter engages and actuates a gear at, which is frictionally mountedon a hub di on the shaft 5t. Gear 52, fixed to the hub 5i, drives the.tens numeral wheel 56,

both at the front of the apparatus and at the back thereof, throughidler gears 53. The hundreds numeral wheel 55 is similarly driventhrough a Geneva movement actuated by the gear 52.

It will be understood that various changes in details of constructionand arrangement can be made to suit different conditions of use and theinvention, therefore, is not restricted to the particular constructionshown and described, except as set forth in the accompanying claims.

I claim as my invention:

1. In combination, two change gears corresponding to different values, acommon means to actuate both of said change gears, means to transmitmovement from one of said change gears,

aoeaies said transmitting means including a gear rotated with said lastmentioned change gear and a wobble shaft having a gear in engagementwith the gear rotated with the last mentioned change gear, and meansactuated by the other change gear to cause the gear on the Wobble shaftto have bodily movement in a circular path whilein engagement with thegear included in said transmitting means, whereby the movement ofrotation of the wobble shaft is a resultant of therotation of bothchange gears.

2. In combination, two change gears corre sponding to different values,a common means to actuate both of said change gears, means to transmitmovement from one of said change gears, said transmitting meansincluding a gear rotated with said last mentioned change gear, and

a wobble shaft having a gear in engagement with the gear rotated withthe last mentioned change gear, a lever pivoted on a fixed point andsupporting one end of the wobble shaft, and means actuated by the otherchange gear to cause the gear on the wobble shaft to have bodilymovement in a circular path while in engagement with the gear includedin said transmitting means, whereby the movement of rotation of thewobble shaft is the resultant of the rotation of both change gears.

3. In combination, two change gears corresponding to different values, acommon means to actuate both of said change gears, means to transmitmovement from one of said change gears including an internal gearrotated with said change gear and a wobble shaft having a gear inengagement with the internal gear, and means actuated by the otherchange gear to cause the gear on the wobble shaft to have bodilymovement in a circular path while in engagement with the internal gear,whereby the movement of rotation of the wobble shaft is a resultant ofthe rotation of both change gears.

CHARLES S. HAZARD.

Cal

